Fitting a Cat Flap

· 6 min read
Fitting a Cat Flap

Getting a cat flap fitted in to your home can be a major step for any pet owner. There are numerous options for you, no matter if your cat is older and requires additional security or if you have kittens that need to be vetted.

It can be intimidating for non-professionals to install the cat flap, but with proper guidelines, it's easy. Preparation, planning and accuracy are the key to success.

Select the Right Door, or Windows

There are a variety of cat flaps, some of which have locks that can be used to stop your pet from leaving or in, while others have advanced features like microchips for door entry system. However, it's important to consider how easy it is for your cat to train to use the flap before you purchase and install one.


It's best to place the cat flap, depending on the style of your home, in an opening that leads into a garden that is sheltered. This will allow your cat to feel secure when entering and leaving your home. This will also allow them to go back inside if they're chased by another animal or humans who want to harm them.

It's possible to install the cat-flap on a uPVC or composite door, but it's not as easy as putting one into a wood door. This is due to the fact that uPVC and composite doors come in different thicknesses, which affect the way holes are cut and what you're fixing to.

If you're installing the flap on the glass of a door, it's recommended that you seek out a glazier that is skilled in this type of work to avoid costly mistakes. If you're installing the flap on a wooden door, start by the cat with it before you fit it so that they can get used to its shape and size, and explore it from all angles.

Measure Your Cat's Belly

It is important to know the measurements of your cat to ensure that the cat flap you install is a good fit. This will allow you to ensure that your cat flap is installed at the correct height on the window or door, and that it's big enough for him to get in and exit easily.

Place your pet on its back and gently move your fingers along their belly. Look for squishy fat pad around the lower back, face or limbs. The extra padding shields your pet and allows it to move more freely, especially when performing feline acrobatics.

visit this link  can also use your pet's weight to determine the size of an opening you'll need. If your cat is up to 5Kg in weight, for example that's a 14x12cm flap for your cat is advised.

Take a measurement of your door or window

The name implies the cat flap is designed to be fixed into a door and provides the pet with a way to go in or out as it pleases. They are usually made of aluminum or plastic and rest in the middle of the door with the possibility of a swinging door that is opened by pressing lightly on either side. The flaps are available in locking versions which provide extra security so that your cat is not able to traverse the door from outside.

A window is a common location for a cat flap, and they're easy enough to install, though they often need to be set up high as it is difficult for cats and dogs to access them. If the window is too high to use a cat flap, steps, ramps or purpose built stairs can be utilized to help the animal access it.

It is possible to insert an egress into brick walls, however it is not recommended for those who aren't familiar with masonry. This could weaken the wall's structure. Before you begin, it's essential to ensure that the wall is free of pipes and cables. Always consult an expert when you need to cut a hole in the wall for pipes or cables. It's also advisable to wear protective goggles and a dust-proof mask to prevent inhaling any of the sawdust created by cutting holes in the walls of your house.

Select the Right Cat Flap

There are a variety of cat flaps available and each one comes with different features. Some cat flaps have security features, such as magnetic locks or microchip recognition that block entry by anyone who isn't authorized. They also keep your pet from letting friends or other animals into the home. Certain seals are weatherproof and have insulation to block out draughts and moisture.

There's also a variety of sizes depending on the size and breed of your pet. Some cat flaps come in rectangular shapes, whereas others are circular or square. The kind of cat flap you choose will depend on the dimensions of the opening as well as the kind of door or window you're fitting it to.

Lastly, think about the mechanism to open your cat flap will come with. The cheapest option is a simple swing-out aluminium or plastic door. However, it will not keep other animals or cats from entering your home and you could be letting draughts in as well.

It's time to install your cat flap. Start by marking the height of the belly on the door using your ruler. Use a spirit-level to make sure the line is not too low and is in line with the door. Create a template for the shape of the cat flap using your spirit level as a reference. Then, you can use your saw to cut out the outline of the door. When you are satisfied with the result then sand the edges and drill through the pencil lines to make holes for screws.

Make sure you have the tools ready

Like all DIY jobs, it's always best to have the appropriate tools for the job. You'll require the cat flap as well as tape measure and pencil, a spirit-level, a drill and a jigsaw depending on the type of door or window.

Contact the manufacturer prior to making any modifications to a composite door. This could invalidate the warranty, or cause the weathertight seal damaged. In this instance you'll require an entirely new pane of toughened glass instead.

For wooden or uPVC doors you'll need to cut out the shape of your cat flap with the Jigsaw. Follow the guidelines provided by the manufacturer. Use a template if possible to mark the size hole you'll need.

After you've cut the required hole, you'll need to sand down the edges of the opening to smooth them. This will stop any future water damage or rust. It is also recommended to cover the holes in your door or window and the back of the cat flap to prevent wind and rain. After the sealant has dried then you're now ready to put in your new cat flap!

Install the Flap

Installing a flap allows your cat to go and come whenever it pleases. This is a straightforward process that most people can accomplish themselves, although you will likely need to hire an expert if you're installing the flap in a glass door or other kind of uPVC door.

Check out the directions included with your cat flap. You will find a drawing of the template. This will give you an idea of the location where holes need to be made for the flap to be placed in the door. Then, mark the areas in which you will must drill using the pencil.

After you have marked the area on your door, use the jigsaw and cut out the the cat flap. This is a fairly simple task, but you will need to be comfortable using the saw. Many companies will complete this for you for a reasonable price if you are hesitant to do it yourself.

Then, you can screw the inside part to the hole in your door. You may have to seal it prior to making this move to ensure it is weather and water resistant. Then, you can put the outer part of the flap on the top of the fixing bolts, and tighten them all. You should test the cat flap on your cat to confirm that it is working correctly and that it allows them to enter and exit easily.